COMP: Remove unused code in ConfigureWrapping.cmake

Remove cmake_minimum_version check, this is done anyway in CMakeLists.txt
Remove ITK version check, this is not needed
Remove ITK_VERSION definition, this will not be used anywhere
Remove cmake COMP 0003 policy, the NEW policy is used with never versions of cmake by default.

Change-Id: Id42f143b40b374346409fa3f788a3f7954996142
Merge topic 'ConfigureWrapping-cleanup'

47ceb738 COMP: Remove unused code in ConfigureWrapping.cmake